Closure for distillation-furnaces and particularly coke-ovens.



APPLICATION FILED OCT. 11, 1913- Patented June 15,

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A TOR/VEYS ART HERMANN JOSEPH LIMBERG, OF GELSENKIRCHEN, GERMANY.

Applicatiorrfiled October 11, 1913.

To all whom. it may concern:

Be it known that I, HERMANN JOSEPH LIMBIERG, a subject of the German Emperor, residing at Gelsenkirchen, Germany, have invented certain new and useful Improvements in Closures for Distillation-Furnaces and Particularly Coke-Ovens, of which the following is a specification.

The present invention relates to closures for distillation furnaces and particularly, coke ovens for the dried distillation of coal, lignite, pea-t, wood or the like.

The invention consists in the special formation and packing of the closing door and of the corresponding frame, the improved arrangement having the object of obtaining a perfect joint for the closure.-

An embodiment of the invention is illustrated by way of example on the accompanying drawings, whereon:

Figure 1 shows afurnace door in front elevation. Fig. 2 illustrates the furnace door in vertical section. Fig. 3 is a horizontal section thereof.

In the drawing, 1 is the furnace door, 2 the frame and 3 the packing. At its edges,

the furnace door 1 is chamfered in the usual manner toward the interior of the furnace. At its lower part, it is horizontally formed however, in order to prevent the packed door from falling down under the influence of the weight in the furnace opening which flares outward, and destroying the joint. The furnace door opening or the frame 2 is also made horizontalat the lower part, so that the furnace door is secured from dropping. The packing ring 3 consists of a refractory yielding material such for example as asbestos.

A beading 32 is arranged around the furnace door. A similar beading 42 provided on the furnace frame and either passes entirely around the inner portion of the furnace frame, or can stop short at the lower part. This omission is with the object of preventing injury to the beading at the lower part. Pins 43 are provided for retaining the packing ring 3, but these pins are not fixed to the door but are formed as T-shaped screws which are inserted in corresponding recesses 44- at suitable places in the door 1, which are reinforced at the in- Specification of Letters Patent.

Patented June 15, 1915.

Serial No. 794,606.

terior. Consequently, the pins 43 can readily be replaced. The beading 42 can be carried entirely around the interior of the frame including its bottom portion. If the beadings 32 and 42" are chamfered in such a manner that they fit in the manner of a valve seat, these headings will remain uninjured and it will be unnecessary to provide the packing,

ring 3. If one or both of the beadings should be injured, a packing cable can be fitted. In this case, it 1s advantageous to provide the pins 43.. The means for closing this door may be of any convenient kind. The door can be fixed by arranging pressure screws 51 and traction screws 52"upon removable transverse beams 01' bars 49 held in place by bolts (Fig. 3). The pressure screws serve for tightening the closing member and the tension screws for separating it from the frame, on opening thetension screws which, if desired, may be arranged on separate transverse bars, are preferably formed as T-shaped screws displaceable in a slot-53.

What I claim and desire to secure by Letters Patent of the'United States is 1. In distillation furnaces, a metal door frame combined with a closing door, a packing ring, a beading provided on the door, readily removable retaining means arranged in the door so as to guide said packing ring between them and said door beading, and another beading arranged on the door frame so as to bear on the former beading in the form of a. valve seat.

2. In distillation furnaces, a metal" door frame combined with a closing door, means for straightly inserting the door, a packing ring, a beading provided on the door, and readily removable pins arranged so as to guide the packing ring between them.

3. In distillation furnaces, a metal door frame combined with a closing door, means for straightly inserting the door, a packing ring, a beading provided on the door, and.

readily removable pins arranged so as to guide the packing ring between them and another beading arranged on the door frame so as to bear on the former heading in the form of a valve seat.

4. In distillation furnaces, a metal door frame combined with closing doors, means for straightly inserting the doors, a packing In testimony whereof I afiix my signaring, a beading provided on the door, and ture in presence of two Witnesses. readily removable pins arranged so as to HERMANN JOSEPH HMBERG [L 5] guide the packing rope between them, the

5 pins being provided with T-shaped rein- Witnesses:

forcements and corresponding slots in the HELEN NUFER, door for inserting the pins therein. ALBERT NUFER. 

